西安交通大学《专业英语》在线作业三

奥鹏西安交通大学新学期作业参考

西安交通大学新学期《专业英语》在线作业-00003

1.A group of scientists are conducting a(_______)into the feasibility of cloning human beings.
选项A：entrance
选项B：research
选项C：inquiry
选项D：investigation
正确答案问询微信：424329

2.The advertisement said that an expanding company wished to (_______) a secretary at their head office.
选项A：explore
选项B：exploit
选项C：employ
选项D：accept
正确答案问询微信：424329

3.________ a concert next Saturday?
选项A：There will be
选项B：Will there be
选项C：There can be
选项D：There are
正确答案问询微信：424329

4.A D/A is a device that can convert a digital signal to the equivalent _____.
选项A：digital form
选项B：numerical form
选项C：binary form
选项D：analog form
正确答案问询微信：424329

5.The hydropower is well suited for switching according to _____ command to meet changing power needs.
选项A：a consumer’s
选项B：a user’s
选项C：a dispatcher’s
选项D：an operator’s
正确答案问询微信：424329

6.The story of George Washington and the cherry tree is (_______) every American school child.
选项A：known as
选项B：known to
选项C：known for
选项D：known in
正确答案问询微信：424329

7.Thank you very much for giving me so much help.
— (_______) .
选项A：No thank you
选项B：You’re welcome
选项C：OK
选项D：Thanks
正确答案问询微信：424329

8.( ) is used as coolant in light-water reactors.
选项A：Gas
选项B：Organic compound
选项C：Molten salt
选项D：Water
正确答案问询微信：424329

9.Anne couldn't concentrate(_______)what she was doing while her families were watching TV.
选项A：to
选项B：on
选项C：for
选项D：in
正确答案问询微信：424329

10.___, and we’ll know the results of the contest.
选项A：Another 3 days
选项B：Three days later
选项C：After 3 days
选项D：In three days
正确答案问询微信：424329

11.The aim of our training is to teach the students to have the ability of tackling problems (_______) .
选项A：of their own
选项B：on their own
选项C：to their own
选项D：for their own
正确答案问询微信：424329

12.Must I be home before seven?
— (_______) .
选项A：No, you needn’t
选项B：No, you mustn’t
选项C：OK
选项D：no, you won’t
正确答案问询微信：424329

13.—Are you sure that you’ve met him before? — ___I’m mistaken.
选项A：Unless
选项B：If
选项C：When
选项D：Though
正确答案问询微信：424329

14.—Don’t you think hard work is what makes people succeed?— ___.
选项A：I couldn’t agree more
选项B：I hope so
选项C：I’ve got it
选项D：Wish you success
正确答案问询微信：424329

15.——Would you tell me ___you want your tea , with sugar or milk ?——Sugar , please .
选项A：whether
选项B：when
选项C：how
选项D：what
正确答案问询微信：424329

16.After stopping for a few minutes, the bus moved (_______) to its next stop.
选项A：forward
选项B：off
选项C：with
选项D：on
正确答案问询微信：424329

17.Someone called me at midnight, but he hung up___I could answer it.
选项A：after
选项B：before
选项C：until
选项D：while
正确答案问询微信：424329

18.The toy boat turned over and sank to the (_______) of the pool.
选项A：base
选项B：depth
选项C：ground
选项D：bottom
正确答案问询微信：424329

19.______ that the left side of the human brain is responsible for logic .
选项A：It generally is believed
选项B：It is believed generally
选项C：It is generally believed
选项D：Generally it is believed
正确答案问询微信：424329

20.—Is there anything I can do for you, sir?— ___.
选项A：Sure. Go ahead
选项B：No. Take your time
选项C：Yes. You’re welcome
选项D：Not now. Thanks anyway
正确答案问询微信：424329

21.The objective of the optimal economic operation of power systems is _____.
选项A：to minimize the total production cost
选项B：to maintain frequency constant
选项C：to maintain voltages constant
选项D：to ensure balance between generation and load
正确答案问询微信：424329

22.He (_______) the children so badly that they were terrified of him.
选项A：behaved
选项B：treated
选项C：dealt
选项D：acted
正确答案问询微信：424329

23.The electric machine that operates at speeds above synchronous speed works in _____ region.
选项A：motoring
选项B：generating
选项C：plugging
选项D：stopping
正确答案问询微信：424329

24.Within industries, companies are always trying to develop products that are one step better than___ of other companies.
选项A：ones
选项B：that
选项C：those
选项D：all
正确答案问询微信：424329

25.It is reported that two cars (_______) into each other this morning on the highway, killing both driver and two passengers.
选项A：crawled
选项B：crouched
选项C：pressed
选项D：crashed
正确答案问询微信：424329

26.The protective scheme that senses zero sequence current and operates as necessary is called as _____.
选项A：overcurrent protection
选项B：zero sequence protection
选项C：negative sequence protection
选项D：directional protection
正确答案问询微信：424329

27.(_______),you must show your ticket to go into the cinema
选项A：No matter whoever you are
选项B：Whoever you are
选项C：Whomever you are
选项D：No matter who are you
正确答案问询微信：424329

28.Good morning, Dr. Johnson‘s office. Can I help you? — (_______) .
选项A：Speaking, please.
选项B：I'd like to make an appointment,please
选项C：Yes, go on
选项D：No, you can't
正确答案问询微信：424329

29.The red rose is her (_______) .
选项A：favor
奥鹏西安交通大学新学期作业参考 选项B：favorite
选项C：like
选项D：best
正确答案问询微信：424329

30.They have lessons every day (_______) Saturday.
选项A：except
选项B：except for
选项C：except that
选项D：besides
正确答案问询微信：424329

31.The system's characteristic equation can be used to determine _____ of a linear time-invariant system.
选项A：the stability
选项B：magnitude of the steady-state error
选项C：the controllability
选项D：the observability
正确答案问询微信：424329

32.These heavy walls expressed man's fear of the outer world and his need to find (_______) .
选项A：prevention
选项B：protection
选项C：preservation
选项D：preparation
正确答案问询微信：424329

33.Her eyes were filled (_______) tears.
选项A：of
选项B：with
选项C：in
选项D：along
正确答案问询微信：424329

34.Passengers on the London train are being asked to go off and (_______) to another.
选项A：transfer
选项B：translate
选项C：transform
选项D：travel
正确答案问询微信：424329

35.A computer printer is _____ device that produces computer-generated text or graphical images on paper.
选项A：an input
选项B：an output
选项C：a storage
选项D：a data processing
正确答案问询微信：424329

36.About 40% of the land of the country is situated (_______) sea level.
选项A：under
选项B：over
选项C：beneath
选项D：below
正确答案问询微信：424329

37.How much a man can earn depends (_______) his skills.
选项A：along
选项B：at
选项C：on
选项D：with
正确答案问询微信：424329

38.____other young men, he enjoys popular music.
选项A：Compared with
选项B：In common with
选项C：Referred to
选项D：Talking of
正确答案问询微信：424329

39.All the characteristics that distinguish birds (_______) other animals can be traced to prehistoric times.
选项A：to
选项B：between
选项C：for
选项D：from
正确答案问询微信：424329

40.1
选项A：A
选项B：B
选项C：C
选项D：D
正确答案问询微信：424329

41.Chinese is the language spoken by the ___ number of the people in the world, but it's not as ___ as English.
选项A：largest;widely spoken
选项B：large;wide spoken
选项C：larger;widely speaking
选项D：larger;widely speaking
正确答案问询微信：424329

42.Oh, sorry to bother you. —– (_______) .
选项A：That's OK
选项B：No, you can't
选项C：That's good
选项D：Oh, I don't know
正确答案问询微信：424329

43.Mary’s bother promised to go to London with us, but now he is considering___.
选项A：he doesn’t go
选项B：not to go
选项C：not going
选项D：not go
正确答案问询微信：424329

44.After having a good holiday, they are very keen to (_______) business.
选项A：get along
选项B：get to
选项C：get in
选项D：get over
正确答案问询微信：424329

45.An electric heater draws 10 A from a 120V line. The resistance of the heater is _____.
选项A：1200?
选项B：120?
选项C：12?
选项D：1.2?
正确答案问询微信：424329

46.Most programmers today prefer to use high-level languages, such as C++, Java, COBOL, and Visual Basic. ( )
选项A：错误
选项B：正确
正确答案问询微信：424329

47.An output device, such as a keyboard or mouse, gathers input and transforms it into a series of electronic signals for the computer. ( )
选项A：错误
选项B：正确
正确答案问询微信：424329

48.For example, if the effective value is 110V, the peak value is 220V.( )
选项A：错误
选项B：正确
正确答案问询微信：424329

49.If a conductor cuts through lines of flux, the voltage in the conductor is caused. ( )
选项A：错误
选项B：正确
正确答案问询微信：424329

50.Whenever a conductor cuts through lines of flux a voltage is induced in the conductor. The voltage is CEMF (Counter Electromotive Force).( )
选项A：错误
选项B：正确
正确答案问询微信：424329